Chemical Renal Ethanol Sympatholysis Under CT Guidance Use for the Control of Therapy-Resistant Hypertension

Inclusion Criteria: * more or equal than 18 years old, * patient with triple antihypertensive therapy (maximum tolerated dose) with a diuretic, except for anuric patients, and without modification treatment: * in the last two months, * expected in the next three months, * renal transplanted patients with native kidneys followed for hypertension before transplant, and having a arterial systolic pressure ≥ 160 mmHg on the average of 3 measurements taken during the screening consultation and during at least one previous consultation OR * chronic renal failure patient with dialysis and having a arterial systolic pressure ≥ 160 mmHg on the average of 3 measurements taken during the screening consultation and during at least one previous consultation * patient affiliated to social security or similarly regime * patient who signed the consent to participate in the study No Inclusion Criteria: * renal artery anatomy against-indicating the procedure including: * 3 homolateral renal arteries * kidney surgery including bypass surgery or renal artery reimplantation * volume-dependent type of hypertension * secondary hypertension (not included nephropathy) * orthostatic hypotension associated with symptoms during the previous year * medical history including: * acute coronary syndrome, unstable angina, stroke within 6 months preceding the period of inclusion, * surgery scheduled on the kidney, the renal arteries or the retroperitoneum during patient participation in the study period * chronic alcoholism * anticoagulants or antiplatelet agents for which a therapeutic window can not be considered (except aspirin dose less than or equal to 160mg / day) * contraindication to the realization of an MRI * included in another trial assessing a medicament or a medical device or a surgical procedure * protected person referred to in Articles L1121-5 to L1121-8 of the Code of Public Health